Indraprastha Gas Limited [IGL] — No satisfactory response on complaint of bill

Dear sir I am IGL PNG customer with BP No [protected] kanchan Mishra of Delhi had taken connection on 06 monthly security EMI basis but, many time I demanded statement of my security deposit, but company have no response.And given latest bill of about Rs 2262 INR of 45 unit consumption.Which should be only about Rs 1200 only and I demanded bill at E Mail with ticket no [protected] but yet not provided.Mob [protected]